DRAFT

REPORT TO THE ADVISORY BOARD 

ON RADIATION AND WORKER HEALTH

National Institute of Occupational Safety and Health 

COMPARISON OF SC&A’S BLIND DOSE RECONSTRUCTION 

TO NIOSH’S DOSE RECONSTRUCTION OF CASE #[REDACT] 

FROM THE HANFORD SITE 

Contract No. 211-2014-58081 

SCA-TR-DRC2015- CN[Redact]

Prepared by 

Douglas Farver, CHP 

S. Cohen & Associates 

1608 Spring Hill Road, Suite 400 

Vienna, Virginia 22182 

May 2015

Disclaimer

This document is made available in accordance with the unanimous desire of the Advisory Board on 

Radiation and Worker Health (ABRWH) to maintain all possible openness in its deliberations. However, 

the ABRWH and its contractor, SC&A, caution the reader that at the time of its release, this report is predecisional and has not been reviewed by the Board for factual accuracy or applicability within the 

requirements of 42 CFR 82. This implies that once reviewed by the ABRWH, the Board’s position may 

differ from the report’s conclusions. Thus, the reader should be cautioned that this report is for 

information only and that premature interpretations regarding its conclusions are unwarranted.
Effective Date:

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S. Cohen & Associates:

Technical Support for the Advisory Board on

Radiation & Worker Health Review of

NIOSH Dose Reconstruction Program

Document No. 

SCA-TR-BDR2015-CN[Redact]

Effective Date: 

Draft – May 12, 2015

Revision No.

0 (Draft)

COMPARISON OF SC&A’S BLIND DOSE 

RECONSTRUCTION TO NIOSH’S DOSE 

RECONSTRUCTION OF #[REDACT] FROM THE 

HANFORD SITE

Page 2 of 16

Task Manager:

___________________________ Date:

Rose Gogliotti

Supersedes:

N/A

Project Manager: 

___________________________ Date:

John Stiver, MS, CHP

Reviewers:

 Rose Gogliotti

 Kathleen Behling

 John Stiver

Record of Revisions

Revision 

Number Effective Date Description of Revision

0 (Draft) 05/12/2015 Initial issued.
Effective Date:

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TABLE OF CONTENTS 

Abbreviations and Acronyms ......................................................................................................... 4

1.0 Relevant Background Information ...................................................................................... 5

2.0 Comparison of Methodology/Doses used by NIOSH and SC&A for Case #[Redact] ....... 7

2.1 Occupational External Dose Calculations .............................................................. 8

2.1.1 Recorded Photon and Neutron Doses ......................................................... 8

2.1.2 Missed Photon and Neutron Doses ............................................................. 9

2.1.3 Occupational Medical Doses .................................................................... 10

2.1.4 Onsite Ambient External Doses ................................................................ 11

2.1.5 Dose from Hot Particle Releases .............................................................. 11

2.2 Occupational Internal Doses ................................................................................. 12

2.2.1 Internal Dose from Plutonium and Americium ........................................ 12

2.2.2 Internal Dose from Fission Products......................................................... 12

2.2.3 Internal Dose based on Coworker Intakes ................................................ 13

2.2.4 Internal Environmental Dose .................................................................... 13

3.0 Summary Conclusions ...................................................................................................... 14

References ..................................................................................................................................... 15

Addendum A: SC&A’s Blind Dose Reconstruction Report of Case #[redact] ........................... 16

LIST OF TABLES 

Table 1-1. Comparison of NIOSH’s Assigned Doses to SC&A’s Blind DR Doses ......................6

Table 2-1. Comparison of Data and Assumptions Used by NIOSH and SC&A ............................7

Table 2-2. Comparison of Recorded Photon and Neutron Doses ...................................................9

Table 2-3. Comparison of Missed Photon and Neutron Doses .....................................................10

Table 2-4. Comparison of Occupational Medical Doses ..............................................................11

Table 2-5. Comparison of Onsite Ambient External Doses .........................................................11

Table 2-6. Comparison of Internal Doses .....................................................................................13

Table 3-1. Comparison of Total External and Internal Doses ......................................................14
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ABBREVIATIONS AND ACRONYMS 

Advisory Board Advisory Board on Radiation and Worker Health 

CADW chronic annual dose workbook 

CATI Computer-Assisted Telephone Interview 

CF correction factor

DCF dose conversion factor

DOE (U.S.) Department of Energy 

DOL (U.S.) Department of Labor 

dpm disintegrations per minute 

DR dose reconstruction 

EE energy employee 

GM geometric mean 

ICD International Classification of Diseases 

ICRP International Commission on Radiological Protection 

IMBA Integrated Modules for Bioassay Analysis 

IREP Interactive RadioEpidemiological Program 

keV kilo electron volt; 1,000 electron volts 

LOD limit of detection

MeV million electron volts 

nCi nanocurie 

NIOSH National Institute for Occupational Safety and Health 

OCAS Office of Compensation Analysis and Support 

ORAUT Oak Ridge Associated Universities Team 

PA posterior-anterior 

PFG photofluorography 

pCi picocurie 

POC probability of causation 

rem Roentgen equivalent man 

SCC squamous cell carcinoma 

SC&A S. Cohen and Associates (SC&A, Inc.) 

SD standard deviation 

TBD technical basis document 

WBC whole body count 

yr year 
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1.0 RELEVANT BACKGROUND INFORMATION 

Under Contract No. 211-2014-58081, SC&A was tasked by the Advisory Board on Radiation 

and Worker Health (Advisory Board) to perform six blind dose reconstructions (DRs) at the July 

2014, DR Subcommittee meeting. SC&A was provided all of the Department of Energy (DOE) 

dosimetry records; the Department of Labor (DOL) correspondence, forms, and medical records; 

and the Computer-Assisted Telephone Interview (CATI) Reports that were made available to the 

National Institute for Occupational Safety and Health (NIOSH) for reconstructing doses in behalf 

of these cases. SC&A used an independent approach to reconstruct occupational external and 

internal doses for the cases using the available dosimetry records and current guidance from 

NIOSH, including the spreadsheets and other tools developed by NIOSH to calculate the doses. 

On February 27, 2015, SC&A submitted to the Advisory Board and NIOSH, a memorandum 

containing the summary results of our blind DR in behalf of Case #[redact]. After submitting 

the memorandum and prior to completing this blind comparison report, SC&A realized that an 

error was made in running the Hanford external dose workbook, which resulted in an 

overestimate of total doses by approximately a factor of 3. This corrected reduction in dose 

changed the initially reported probability of causation (POC) of 61.96% to below the 

compensation threshold of 50%. The complete DR report titled, Blind Dose Reconstruction of 

Case #[Redact] from the Hanford Site (SCA-TR-BDR2015-CN[redact]), which provides the 

assumptions and methodologies used to derived occupational radiation doses and resultant POC, 

is included herein as Addendum A. In this report, SC&A presents a comparison between 

NIOSH’s and SC&A’s DR methodologies, doses, and resultant POC values for Case #[redact]. 

Table 1-1 summarizes the external and internal occupational doses calculated by SC&A and the 

NIOSH-assigned doses for the two squamous cell carcinomas (SCCs) and the colon cancer 

diagnosed in behalf of Case #[redact]. A detailed comparison of the two methodologies used to 

calculate doses in behalf of this case is presented in Section 2. Section 3 of this report provides 

Summary Conclusions. 

It should be noted that where appropriate, an explanation is provided regarding the differences in 

doses and why they occurred. However, SC&A does not make any value judgments regarding 

which among them may be the more preferred approach. It is our position that further 

discussions are best addressed by the DR Subcommittee. 
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Table 1-1. Comparison of NIOSH’s Assigned Doses to SC&A’s Blind DR Doses 

NIOSH 

Chest SCC 

Dose (rem)

SC&A 

Chest SCC 

Dose (rem)

NIOSH 

Leg SCC 

Dose 

(rem)

SC&A 

Leg SCC 

Dose 

(rem)

NIOSH 

Colon 

Dose (rem)

SC&A 

Colon 

Dose (rem)

External Dose (Occupational)

 ▪ Recorded:

 <30 keV Photons 0.282 0.394 0.282 0.394 0.007 0.009

 30–250 keV Photons 1.496 1.496 1.496 1.496 1.207 1.117

 0.1–2 MeV Neutrons 1.693 2.134 1.693 2.134 0.834 1.046

 ▪ Missed Dose:

 <30 keV Photons NA 0.105 NA 0.105 0.003 0.003

 30–250 keV Photons 6.305 3.130 6.305 3.130 2.673 2.337

 0.1–2 MeV Neutrons 1.408 6.356 1.408 6.356 0.255 3.116

 ▪ Onsite Ambient Dose:

 30–250 keV Photons 2.616 2.904 2.616 2.904 2.616 1.138

 ▪ Occupational Medical Dose:

 PFG exam, 1959 0.045 2.060 0.000 0.000 0.007 0.007

 30–250 keV Photons 0.015 0.749 0.001 0.001 0.006 0.006

 ▪ Hot Particles

 >15 keV electrons 0.462 NA 0.462 NA NA NA

Internal Dose:

 alpha 0.572 0.039 0.572 0.039 0.736 0.050

 >250 keV photons 0.004 0.004 0.004 0.004 0.013 0.013

 >15 keV electrons 0.626 0.215 0.626 0.215 0.611 3.367

 <15 keV electrons 0.025 NA 0.025 NA 0.475 NA

Total 15.550 19.587 15.490 16.779 9.443 12.210

POC 11.64% 8.71% 11.62% 7.07% 26.12% 25.07%

NA = Not assessed 
Effective Date:

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2.0 COMPARISON OF METHODOLOGY/DOSES USED BY NIOSH 

AND SC&A FOR CASE #[REDACT] 

Case #[redact] represents an energy employee (EE) who worked at the Hanford Site from 

[redact], to [redact]. According to the DOL file, the EE was a [redact]/[redact]/[redact] at the 

Hanford Site for several work periods between [redact] and [redact]. 

The EE was monitored for both external and internal radiation exposure while employed at the 

Hanford Site. The EE was diagnosed with squamous cell carcinoma (SCC) in situ, on the 

[redact] chest (ICD-9 Code 232.5) on [redact], SCC on the [redact] leg (ICD-9 Code 173.72) 

on [redact], and colon cancer (ICD-9 Code 153.6) on [redact].

For calculating radiation doses from employment at the Hanford Site, both DR methods 

primarily relied on guidance in the Technical Basis Document (TBD) for Hanford (issued as six 

separate documents numbered ORAUT-TKBS-0006-1 through ORAUT-TKBS-0006-6), and 

ORAUT-OTIB-0005, Technical Information Bulletin: Internal Dosimetry Organ, External 

Dosimetry Organ, and IREP Model Selection by ICD-9 Code. NIOSH and SC&A used the 

guidance provided in the relevant technical documents, along with the EE’s records to 

reconstruct the EE’s radiation dose. NIOSH used efficiency measures and assumptions related to 

radiation exposure and intakes resulting in a reasonable estimate of the EE’s total dose. SC&A

employed a best-estimate approach for calculating annual organ doses. 

A summary of the documents, assumptions, and dose parameters used by each DR method is 

provided in Table 2-1. 

Table 2-1. Comparison of Data and Assumptions Used by NIOSH and SC&A

Parameters NIOSH SC&A

External Dose

Recorded/Missed/Unmonitored:

 Records/Guidance Documents DOE records, ORAUT-TKBS-0006-6 DOE records, ORAUT-TKBS-0006-6

 Work Locations 300, 700, 3000 Areas as [redact], 

[redact], [redact], [redact], [redact]

300, 700, 3000 Areas as [redact], 

[redact], [redact]

 Energy Range 

Photons: 100% 30keV–250 keV

 <30 keV

Neutrons: 100% 0.1–2 MeV

Photons: 100% 30keV–250 keV

 <30 keV

Neutrons: 100% 0.1–2 MeV

 DCF

Colon 0.024 (<30 keV)

Skin 1.0

Colon 0.747 (30keV–250 keV)

Skin 1.0 

Colon 0.049 (0.1–2 MeV)

Skin 1.0

Colon 0.024 (<30 keV)

Skin 1.0

Colon 0.747 (30keV–250 keV)

Skin 1.0 

Colon 0.049 (0.1–2 MeV)

Skin 1.0

 Dose Distribution

Recorded – Constant, Lognormal, 

Triangular

Missed – Lognormal

Recorded – Constant

Missed – Lognormal

External Medical X-rays:

 Guidance Documents ORAUT-TKBS-0006-3, ORAUT-OTIB0079, ORAUT-PROC-0061 ORAUT-TKBS-0006-3
Effective Date:

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Table 2-1. Comparison of Data and Assumptions Used by NIOSH and SC&A

Parameters NIOSH SC&A

 Frequency

PFG exam in [redact], PA chest 

examinations during most years of 

employment, with two such 

examinations in [redact]. (14 PA 

exams)

PFG exam in [redact], PA chest 

examinations during most years of 

employment, with two such 

examinations in [redact]. (14 PA 

exams)

 Dose Data Tables 3-6, 3-8, 3-10, 3-11 of ORAUTTKBS-0006-3

Tables 3-6, 3-8, 3-10, 3-11 of 

ORAUT-TKBS-0006-3

 Dose Distribution Normal; SD = 30%. Normal; SD = 30%.

Onsite Ambient Dose:

 Guidance Documents ORAUT-PROC-0060, ORAUT-TKBS0006-4

ORAUT-PROC-0060, ORAUT-TKBS0006-4

 Dose Data ORAUT-TKBS-0006-4 Table 4-8 of ORAUT-TKBS-0006-4

 Dose Distribution Constant Constant

Internal Dose

Recorded/Missed:

 Records/Guidance Documents DOE records, ORAUT-TKBS-0006-5 DOE records, ORAUT-TKBS-0006-5

 Dose Determination Approach Overestimate – chronic through [redact]

based on fit of bioassay

Reasonable Estimate – chronic through 

[redact] based on fit of bioassay

 Solubility Type Various, see Section 2.1.1 Various, see Section 2.1.1

POC Program:

NIOSH-IREP POC Ver. 5.7 Ver. 5.7.1

2.1 OCCUPATIONAL EXTERNAL DOSE CALCULATIONS 

2.1.1 Recorded Photon and Neutron Doses 

The DOE records show that the EE was monitored while employed at the Hanford Site from 

[redact] through [redact]. Individual dosimeter results or summary dosimeter totals were used 

to assign recorded dose. 

2.1.1.1 Photon Dose 

Both SC&A and NIOSH used the EE’s recorded photon dose values that were >LOD/2 to assign 

doses using a photon energy range of 100% 30–250 keV photons. Both SC&A and NIOSH 

applied a dose conversion factor (DCF) of 1.0 for the skin resulting in exactly the same skin 

doses from 30–250 keV photons. SC&A applied a DCF of 0.747 for the colon, representing the 

mode of the DCF distribution given in OCAS-IG-001. NIOSH used Monte Carlo techniques, as 

described in ORAUT-OTIB-0012, to calculate a specific colon DCF for each year. 

To determine the doses from <30 keV photons, both SC&A and NIOSH applied DCFs of 1.0 for 

the skin and 0.024 for the colon to the annual recorded non-penetrating dose. SC&A and NIOSH 

also applied a correction factor (CF) of 0.6 to account for film over-response for years prior to 

[redact], as specified in Attachment C of ORAUT-TKBS-0006-6. However, NIOSH continued 

to apply the 0.6 CF through [redact].
Effective Date:

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2.1.1.2 Neutron Dose

SC&A assigned neutron doses from [redact] to [redact] based on the recorded penetrating 

photon readings, work location, and guidance in Section 6.7.3.4 of ORAUT-TKBS-0006-6. The 

neutron doses were calculated for 100 keV–2 MeV neutrons using the recorded gamma dose and 

applying the geometric mean (GM) neutron-to-photon ratio from Table 6-22 of ORAUT-TKBS0006-6, as well as the applicable International Commission on Radiological Protection

Publication 66 (ICRP 1994) and organ DCFs.

NIOSH and SC&A calculated the neutron doses using the same parameters. However, NIOSH 

assigned neutron doses for a shorter time period; from 1964 to 1969. 

A comparison of NIOSH’s and SC&A’s recorded photon and neutron doses is shown in 

Table 2-2. 

Table 2-2. Comparison of Recorded Photon and Neutron Doses 

NIOSH Skin 

(rem)

SC&A Skin 

(rem)

NIOSH Colon 

(rem)

SC&A Colon 

(rem)

Total <30 keV Photon Dose 0.282 0.394 0.007 0.009

Total 30–250 keV Photon Dose 1.496 1.496 1.207 1.117

Total Recorded Neutron Dose 1.693 2.134 0.834 1.046

SC&A entered the photon and neutron doses into the Interactive RadioEpidemiological Program 

(IREP) as constant distributions with no uncertainty. NIOSH entered the photon doses to the 

skin as constant distributions with no uncertainty, and neutron doses as lognormal distributions 

with an uncertainty of 2.30. NIOSH entered the photon doses to the colon as normal, lognormal, 

or triangular distributions and the neutron doses as lognormal distributions. 

2.1.2 Missed Photon and Neutron Doses 

Both NIOSH and SC&A assigned missed photon and neutron doses based on information in 

ORAUT-TKBS-0006-6. 

2.1.2.1 Missed Photon Dose 

SC&A analyzed the number of actual zeros and potential zeros based on a biweekly badge 

exchange cycle prior to [redact] and a monthly exchange thereafter, and arrived at a total of 163 

zeros (or <LOD/2 values) for photons. SC&A used the annual number of zeros, the LOD/2 

value, the DR parameters as listed above, and the applicable DCFs to determine the annual 

missed photon doses. This resulted in the assignment of 3.130 rem to skin and 2.337 rem to the 

colon from 30–250 keV photons. 

NIOSH calculated 240 zeros using a weekly badge exchange cycle prior to [redact] and a 

monthly exchange thereafter, to determine the missed photon dose for 30–250 keV photon, a 

DCF of 1.0 for the skin, and Monte Carlo techniques to calculate a specific colon DCF for each 
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year. This resulted in the assignment of 6.305 rem to skin and 2.673 rem to the colon from 30–

250 keV photons. 

Both SC&A and NIOSH applied a DCF of 0.024 for the colon resulting in exactly the same dose 

of 0.003 rem from <30 keV photons. SC&A used the same method with a DCF of 1.0 for the 

skin to assign a skin dose of 0.105 rem from <30 keV photons. NIOSH did not assign a dose to 

the skin from <30 keV photons. 

2.1.2.2 Missed Neutron Dose 

SC&A assigned missed neutron doses from [redact] to [redact] based on the EE’s work location 

and number of zero dosimeter readings (150 zero readings). The missed neutron doses were 

calculated for 100 keV–2 MeV neutrons using the annual number of zeros and applying the GM 

neutron-to-photon ratio from Table 6-22 of ORAUT-TKBS-0006-6, as well as the applicable 

ICRP and organ DCFs.

NIOSH and SC&A calculated the neutron doses to the colon using the same parameters. For the 

skin, NIOSH multiplied their missed photon doses by the ICRP factor and an organ DCF of 1.0 

to assign missed neutron doses. NIOSH assigned neutron missed doses only during the years of 

[redact] through [redact].

A comparison of the NIOSH and SC&A missed photon and neutron doses is shown in Table 2-3.

Table 2-3. Comparison of Missed Photon and Neutron Doses 

NIOSH Skin 

(rem)

SC&A Skin 

(rem)

NIOSH Colon 

(rem)

SC&A Colon 

(rem)

Total <30 keV Photon Dose NA 0.105 0.003 0.003

Total 30–250 keV Photon Dose 6.305 3.130 2.673 2.337

Total Recorded Neutron Dose 1.408 6.356 0.255 3.116

Both NIOSH and SC&A entered the photon and neutron missed doses into IREP as lognormal 

distributions with an uncertainty of 1.520.

2.1.3 Occupational Medical Doses 

Both DR methods calculated an occupational medical dose from diagnostic x-ray procedures 

required as a condition of employment. NIOSH indicated that they followed guidance cited in 

ORAUT-OTIB-0079, ORAUT-PROC-0061, and ORAUT-TKBS-0006-3 in order to calculate 

their occupational medical doses. 

SC&A used guidance provided in ORAUT-TKBS-0006-3. 

Both NIOSH and SC&A assigned dose for one photofluorography (PFG) x-ray exam in [redact]

and fourteen posterior-anterior (PA) x-ray exams from [redact]–[redact]. For the chest SCC, 

SC&A chose “[Redact] torso: base of neck to end of sternum,” as the cancer location. NIOSH 

chose “Front torso: base of neck to end of sternum,” as the cancer location. This difference in 
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cancer location selection resulted in SC&A’s occupational medical dose to the chest being 

significantly higher than that assigned by NIOSH, as shown in Table 2-4. 

Table 2-4. Comparison of Occupational Medical Doses 

Site

NIOSH 

Chest SCC 

(rem)

SC&A 

Chest SCC 

(rem)

NIOSH 

Leg SCC 

(rem)

SC&A 

Leg SCC 

(rem)

NIOSH 

Colon 

(rem)

SC&A 

Colon 

(rem)

[redact] PFG exam 0.045 2.060 0.000 0.000 0.007 0.007

[redact]– [redact] PA exams 0.015 0.749 0.001 0.001 0.006 0.006

Total 0.060 2.809 0.001 0.001 0.013 0.013

Each DR method entered the annual doses into the IREP Input tables with a normal distribution 

and a standard deviation (SD) of 30%. 

2.1.4 Onsite Ambient External Doses 

Both NIOSH and SC&A assigned ambient external dose from the beginning of employment until 

[redact] in accordance with ORAUT-PROC-0060. SC&A used the maximum external gamma 

dose for each year from Table 4-8 of ORAUT-TKBS-0006-4. SC&A also used the isotropic 

DCFs of 0.803 for the colon and 1.0 for the skin, and corrected for 2,600 hours/yr. 

NIOSH also used the maximum external gamma dose for each year from Table 4-8. However, 

NIOSH used a DCF of 1.0 for each cancer and did not adjust the dose for 2,600 hours/yr. 

Table 2-5 summarizes NIOSH’s and SC&A’s onsite ambient external dose assignments. 

Table 2-5. Comparison of Onsite Ambient External Doses 

Site

NIOSH 

Chest 

SCC 

(rem)

SC&A 

Chest 

SCC 

(rem)

NIOSH 

Leg SCC 

(rem)

SC&A 

Leg SCC 

(rem)

NIOSH 

Colon 

(rem)

SC&A 

Colon 

(rem)

Total Onsite Ambient Dose 2.616 2.904 2.616 2.904 2.616 1.138

2.1.5 Dose from Hot Particle Releases

Emissions of particles of greater than respirable size occurred from the REDOX Plant in March, 

April, June, and September of [redact]; August and September of [redact]; and in January, 

April, May, and June of [redact]. DOE records indicate the EE worked in the 300 Area during 

the time of some of these releases. 

NIOSH calculated skin doses from hot particle releases based on Tables 4-11, 4-12 and 4-13 of 

ORAUT-TKBS-0006-4. NIOSH assigned 0.462 rem to each skin cancer as acute GM dose 

electrons greater than 15 keV. 

SC&A did not assess doses from hot particles. 
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2.2 OCCUPATIONAL INTERNAL DOSES 

The DOE records indicate the EE was monitored for internal exposures to plutonium via urine 

sampling from [redact] through [redact], and to fission products via one urine sample and one 

whole body count (WBC) in [redact]. Most measurement results for non-naturally occurring 

radionuclides showed an activity less than the minimum detectable activity in ORAUT-TKBS0006-5 for the given radionuclides and bioassay method. 

2.2.1 Internal Dose from Plutonium and Americium 

Both SC&A and NIOSH used the EE’s plutonium bioassay data to determine the plutonium and 

americium intakes. The DOE records indicate the EE submitted six in-vitro analyses for 

plutonium from [redact], to [redact], with all of the results reported as less than the limit of 

detection (LOD) of the analysis. NIOSH and SC&A calculated chronic plutonium intakes of 

34.37 dpm/day and 3.5 dpm/day, respectively, of Type S plutonium. Both NIOSH’s and 

SC&A’s intakes were based on half the last urinalysis measurement’s detection level, 

0.025 dpm/sample. NIOSH and SC&A both used the Hanford Pu Mix Intake Rate Calculator 

Workbook 1.12 to determine the intake rates for Pu-239, Pu-238, Pu-241, and Am-241, assuming 

the plutonium material was 10-year-aged fuel-grade plutonium. 

NIOSH and SC&A input the calculated intake rates into the Chronic Annual Dose Workbook 

(CADW) to calculate the internal doses. Each DR method entered the annual doses from 

plutonium and americium into the IREP Input tables with a lognormal distribution and an SD of 

3.0.

NIOSH and SC&A corrected the doses to account for the longer lung clearance times of Type SS 

plutonium. Following the guidance in ORAUT-OTIB-0049, NIOSH and SC&A adjusted the 

dose to the skin by a factor of 4 for doses after the time of the last urine bioassay measurement 

and adjusted all of the colon doses by a factor of 4. 

2.2.2 Internal Dose from Fission Products 

The EE had a WBC on [redact], which was above the detection limits for Cs-137 and Na-24. 

The Cs-137 results were attributed to fallout that is ever-present in the United States as a result 

of foreign and domestic atmospheric weapons testing. Therefore, the Cs-137 exposure was not 

considered to be occupational exposure. NIOSH and SC&A evaluated the potential dose from 

Na-24 and other fission products.

2.2.2.1 Sodium-24 Dose

The EE had positive WBC results for Na-24 on [redact]. NIOSH and SC&A input this positive 

result into the Integrated Modules for Bioassay Analysis (IMBA) computer code to determine a 

chronic ingestion of 457 pCi/day of Na-24 for the entire period of employment, from [redact], 

through [redact]. NIOSH and SC&A calculated the skin and colon doses from the Na-24 intake 

using the CADW workbook. NIOSH and SC&A both assigned total doses from Na-24 of 

0.004 rem to the skin and 0.013 rem to the colon.
Effective Date:

May 12, 2015

Revision No.

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2.2.2.2 Other Fission Products 

SC&A used the Hanford Radionuclide Chooser Workbook and determined the most claimantfavorable radionuclide for the missed dose calculations from fission products would be Type S 

Ce-144 for the colon and Type M Ce-144 for the skin. The resulting chronic intake was 

2,606 nCi/year for the colon and 1,409 nCi/year for the skin for the time period from [redact] 

until [redact]. The skin and colon doses from the Ce-144 intakes were then calculated using the 

CADW. The total doses from Ce-144 are 0.215 rem to the skin and 3.367 rem to the colon. 

According to the DR report, NIOSH assigned the highest radiostrontium coworker intake rate 

from Attachment C of ORAUT-TKBS-0006-5. This intake rate was assigned for radiostrontium 

as the indicator radionuclide without the Table 7-1 fraction correction in ORAUT-OTIB-0054. 

NIOSH used a radiostrontium coworker intake rate of 90.47 dpm/day for the intake period of 

[redact] through [redact]. NIOSH’s total assigned dose from fission/activation products was 

0.157 rem to the skin and 0.597 rem to the colon. 

2.2.3 Internal Dose based on Coworker Intakes 

As an overestimating assumption, NIOSH assigned internal dose from coworker data as 

described in Section 5.6.2 and Attachment C of ORAUT-TKBS-0006-5 and ORAUT-OTIB0054. NIOSH assigned a total internal coworker dose of 0.751 rem to the skin and 0.820 rem to 

the colon. 

SC&A did not assess internal dose based on coworker intakes. 

2.2.4 Internal Environmental Dose 

Both SC&A and NIOSH assessed internal environmental dose while the EE was employed at 

Hanford. In both calculations, the dose from environmental intakes was determined to be less 

than 0.001 rem. 

Table 2-6 summarizes NIOSH’s and SC&A’s internal dose assignments. 

Table 2-6. Comparison of Internal Doses 

NIOSH Skin 

(rem)

SC&A Skin 

(rem)

NIOSH Colon 

(rem)

SC&A Colon 

(rem)

Internal Dose:

 alpha 0.572 0.039 0.736 0.050

 >250 keV photons 0.004 0.004 0.013 0.013

 >15 keV electrons 0.626 0.215 0.611 3.367

 <15 keV electrons 0.025 NA 0.475 NA

Total Internal Dose 1.227 0.258 1.835 3.430
Effective Date:

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3.0 SUMMARY CONCLUSIONS 

Total external and internal doses and resultant POCs calculated by NIOSH and SC&A in behalf 

of Case #[redact] are presented in Table 3-1 for comparison. 

Table 3-1. Comparison of Total External and Internal Doses 

Total Dose

NIOSH 

Chest 

SCC 

(rem)

SC&A 

Chest 

SCC 

(rem)

NIOSH 

Leg SCC 

(rem)

SC&A 

Leg SCC 

(rem)

NIOSH 

Colon 

(rem)

SC&A 

Colon 

(rem)

External Dose: 14.322 19.328 14.263 16.520 7.608 8.779

Internal Dose: 1.227 0.258 1.227 0.258 1.835 3.430

Total Dose 15.550 19.587 15.490 16.779 9.443 12.210

POC 11.64% 8.71% 11.62% 7.07% 26.12% 25.07%

As shown in Table 3-1, NIOSH’s and SC&A’s methods resulted in individual cancer POCs, and 

a combined total POC, that were similar. NIOSH derived a total combined POC of 42.31%

compared to 36.43% for SC&A. 

The following summarizes/compares the methods used by NIOSH and SC&A to assign doses in 

this case: 

Dose Reconstruction Methodology 

 – NIOSH used an overestimating approach and SC&A employed a reasonable-estimate 

approach to the dose reconstruction. 

Assignment of External Dose 

 – NIOSH and SC&A methods were very similar. NIOSH assigned neutron doses for a 

shorter time period than SC&A. 

.

Assignment of Occupational Medical Dose 

 – NIOSH and SC&A used the same methodology in assigning medical doses except for 

the location of the chest SCC. 

 Assignment of Onsite Ambient External Doses 

 – SC&A also used the isotropic DCFs of 0.803 for the colon and 1.0 for the skin, and 

corrected for 2,600 hours/yr. NIOSH used a DCF of 1.0 for each cancer and did not 

adjust the dose for 2,600 hours/yr.

Assignment of Hot Particle Doses 

 – Only NIOSH assigned doses from hot particles to the skin. 

Assignment of Internal Doses 

 – NIOSH and SC&A employed a best-estimate approach to assigning doses based on 

bioassay data. NIOSH also used an overestimating approach by assigning intakes 

from coworker data.
Effective Date:

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REFERENCES 

ICRP (International Commission on Radiological Protection), 1994. Human Respiratory Tract 

Model for Radiological Protection, Publication 66, Pergamon Elsevier Science Inc., Tarrytown, 

New York. 

OCAS-IG-001. 2007. External Dose Reconstruction Implementation Guideline, Rev. 3, 

National Institute for Occupational Safety and Health, Office of Compensation Analysis and 

Support, Cincinnati, Ohio. November 21, 2007. 

ORAUT-OTIB-0005. 2011. Technical Information Bulletin: Internal Dosimetry Organ, 

External Dosimetry Organ, and IREP Model Selection by ICD-9 Code, Rev. 04, Oak Ridge 

Associated Universities Team, Cincinnati, Ohio. April 18, 2011. 

ORAUT-OTIB-0012. 2005. Technical Information Bulletin: Monte Carlo Methods for Dose 

Uncertainty Calculations, Rev. 00, Oak Ridge Associated Universities Team, February 14, 2005. 

ORAUT-OTIB-0049. 2010. Technical Information Bulletin: Estimating Doses for Plutonium 

Strongly Retained in the Lung, Rev. 01 PC-2. Oak Ridge Associated Universities Team, 

Cincinnati, Ohio. November 29, 2010. 

ORAUT-OTIB-0054. 2007. Technical Information Bulletin: Fission and Activation Product 

Assignment for Internal Dose-Related Gross Beta and Gross Gamma Analyses, Rev. 00 PC-1, 

Oak Ridge Associated Universities Team, Cincinnati, Ohio. November 19, 2007. 

ORAUT-OTIB-0079. 2011. Technical Information Bulletin: Guidance on Assigning 

Occupational X-Ray Dose under EEOICPA for X-Rays Administered Off Site, Rev. 00, Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. January 3, 2011. 

ORAUT-PROC-0060. 2006. Occupational On-Site Ambient Dose Reconstruction for DOE 

Sites, Rev. 01. Oak Ridge Associated Universities Team, Cincinnati, Ohio. June 28, 2006. 

ORAUT-PROC-0061. 2010. Occupational Medical X-Ray Dose Reconstruction for DOE Sites, 

Rev. 03. Oak Ridge Associated Universities Team, Cincinnati, Ohio. March 3, 2010. 

ORAUT-TKBS-0006-3. 2010. Hanford Site – Occupational Medical Dose, Rev. 03. Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010. 

ORAUT-TKBS-0006-4. 2010. Hanford Site – Occupational Environmental Dose, Rev. 03. 

Oak Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010. 

ORAUT-TKBS-0006-5. 2010. Hanford Site – Occupational Internal Dose, Rev. 04. Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. October 20, 2010. 

ORAUT-TKBS-0006-6. 2010. Hanford Site – Occupational External Dose, Rev. 04. Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010.
Effective Date:

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ADDENDUM A: SC&A’S BLIND DOSE RECONSTRUCTION 

REPORT OF CASE #[REDACT] 
DRAFT 

REPORT TO THE ADVISORY BOARD 

ON RADIATION AND WORKER HEALTH

National Institute of Occupational Safety and Health 

BLIND DOSE RECONSTRUCTION OF CASE #[REDACT]

FROM THE HANFORD SITE

Contract No. 211-2014-58081 

SCA-TR-BDR2015-CN[Redact]

Prepared by 

Douglas Farver, CHP 

S. Cohen & Associates 

1608 Spring Hill Road, Suite 400 

Vienna, Virginia 22182 

February 2015

Disclaimer

This document is made available in accordance with the unanimous desire of the Advisory Board on 

Radiation and Worker Health (ABRWH) to maintain all possible openness in its deliberations. However, 

the ABRWH and its contractor, SC&A, caution the reader that at the time of its release, this report is predecisional and has not been reviewed by the Board for factual accuracy or applicability within the 

requirements of 42 CFR 82. This implies that once reviewed by the ABRWH, the Board’s position may 

differ from the report’s conclusions. Thus, the reader should be cautioned that this report is for 

information only and that premature interpretations regarding its conclusions are unwarranted.
Effective Date:

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Document No. 

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S. Cohen & Associates:

Technical Support for the Advisory Board on

Radiation & Worker Health Review of

NIOSH Dose Reconstruction Program

Document No. 

SCA-TR-BDR2015-CN[Redact]

Effective Date: 

Draft – February 27, 2015

Revision No.

0 (Draft)

BLIND DOSE RECONSTRUCTION 

OF CASE #[REDACT] FROM THE HANFORD 

SITE

Page 2 of 34

Task Manager:

___________________________ Date:

Douglas Farver, CHP

Supersedes:

N/A

Project Manager: 

___________________________ Date:

John Stiver, MS, CHP

Reviewers:

 Rose Gogliotti

 Kathy Behling

 John Stiver

Record of Revisions

Revision 

Number Effective Date Description of Revision

0 (Draft) 02/27/2015 Initial issued.
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TABLE OF CONTENTS 

Abbreviations and Acronyms ......................................................................................................... 4

1.0 Summary Background Information .................................................................................... 6

1.1 SC&A Blind DR Approach .................................................................................... 6

2.0 External Doses .................................................................................................................... 8

2.1 Recorded Photon Dose ............................................................................................ 8

2.2 Missed Photon Dose ............................................................................................... 9

2.3 Recorded Neutron Dose ........................................................................................ 10

2.4 Missed Neutron Dose ............................................................................................ 10

2.5 Occupational Medical Dose .................................................................................. 11

2.6 Onsite Ambient Dose ............................................................................................ 11

3.0 Internal Doses ................................................................................................................... 13

3.1 Missed Dose from Plutonium/Americium ............................................................ 13

3.2 Internal Dose from Fission Products..................................................................... 13

3.2.1 Sodium-24 Dose........................................................................................ 14

3.2.2 Other Fission Products .............................................................................. 14

3.3 Environmental Dose.............................................................................................. 14

4.0 CATI Report and Radiological Incidents ......................................................................... 15

5.0 Summary Conclusions ...................................................................................................... 16

References ..................................................................................................................................... 17

Appendix A-1: IREP Input – SCC on Chest ................................................................................ 18

Appendix A-2: IREP Input – SCC on Leg................................................................................... 23

Appendix A-3: IREP Input – Colon ............................................................................................. 29

LIST OF TABLES 

Table 1-1. Employment History .....................................................................................................6

Table 1-2. Summary of SC&A-Derived External/Internal Dose Estimates ...................................7

Table 2-1. External Dose Parameters ..............................................................................................8

Table 3-1. Calculated Intake Rates ...............................................................................................13
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ABBREVIATIONS AND ACRONYMS 

AP anterior-posterior 

CADW chronic annual dose workbook 

CATI Computer-Assisted Telephone Interview 

CF correction factor 

D.D. deep dose 

DCF dose conversion factor 

DOE (U.S.) Department of Energy 

DOL (U.S.) Department of Labor 

dpm disintegrations per minute 

DR dose reconstruction 

EE energy employee 

GM geometric mean 

ICD International Classification of Diseases 

ICRP International Commission on Radiological Protection 

IMBA Integrated Modules for Bioassay Analysis 

IREP Interactive RadioEpidemiological Program 

keV kilo electron volt; 1,000 electron volts 

LOD limit of detection 

MeV million electron volts 

nCi nanocurie 

NIOSH National Institute for Occupational Safety and Health 

NP.D. non-penetrating dose 

OCAS Office of Compensation and Support 

ORAUT Oak Ridge Associated Universities Team 

PA posterior-anterior 

PFG photofluorography 

pCi picocurie 

PNNL Pacific Northwest National Laboratory 

POC probability of causation 

rem Roentgen equivalent man 

SCC squamous cell carcinoma 
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SC&A S. Cohen and Associates (SC&A, Inc.) 

TBD technical basis document 

WBC whole body count 

yr year 
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1.0 SUMMARY BACKGROUND INFORMATION 

This report presents the results of an independent blind dose reconstruction (DR) performed by 

SC&A for an energy employee (EE) who worked at the Hanford Site from [redact], to [redact]. 

The EE was diagnosed with squamous cell carcinoma (SCC) in situ, on the [redact] chest

(ICD-9 Code 232.5) on [redact], SCC on the [redact] leg (ICD-9 Code 173.72) on [redact], 

and colon cancer (ICD-9 Code 153.6) on [redact].

According to Department of Labor (DOL) files and the Computer-Assisted Telephone Interview 

(CATI) report, the EE was a [redact]/[redact]/[redact] at the Hanford Site for several work 

periods, as shown in Table 1-1. The EE was monitored for both external and internal radiation 

exposure while at the Hanford Site. 

Table 1-1. Employment History 

Date Employer Occupation Area

[redact] General Electric Hanford [redact]/[redact] 300 Area 321A; Bldg 3760; 700 Area

[redact] General Electric Hanford [redact]

300 Area; Bldgs 3706, 3760; 

700 Area Bldg 703

[redact] General Electric Hanford 300 Area

[redact] General Electric Hanford 300 Area; Bldgs 3703, 3706

[redact] General Electric Hanford [redact] 300 Area, Bldg 326

[redact] Battelle/PNNL [redact] 300 Area Bldg 326; 700 Area

[redact] Westinghouse Hanford [redact] 300 Area, Bldg 309

[redact] Westinghouse Hanford [redact] 3000/3190 Area

[redact] Westinghouse Hanford [redact] 3000/3190 Area

[redact] Westinghouse Hanford [redact] 3000/3190 Area

[redact] Westinghouse Hanford [redact] 3000/3190 Area

1.1 SC&A BLIND DR APPROACH

SC&A reviewed all of the Department of Energy (DOE) records provided in behalf of this 

employee and the National Institute for Occupational Safety and Health (NIOSH) procedures 

relevant to this case, which included the Technical Basis Document (TBD) for the Hanford Site 

(issued as six separate documents numbered ORAUT-TKBS-0006-1 through ORAUT-TKBS0006-6), ORAUT-OTIB-0005 for surrogate organs, OCAS-IG-001 for dose conversion factors 

(DCFs), and ORAUT-TKBS-0006-3 for occupational x-ray doses. Using the guidance provided 

in these documents, along with the employee’s dosimetry records, SC&A calculated reasonable, 

claimant-favorable annual organ doses. Table 1-2 provides a summary of the total doses 

assigned for the cancer sites. Appendices A-1, A-2, and A-3 provide a list of SC&A’s assigned 

annual organ doses and also includes the Interactive RadioEpidemiological Program (IREP) 

input parameters, such as energy range, distribution type, and uncertainty for each year. 
Effective Date:

February 27, 2015

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Table 1-2. Summary of SC&A-Derived External/Internal Dose Estimates 

Appendix A-1 

Entry No.

SCC 

Chest 

(rem)

Appendix A-2 

Entry No.

SCC 

Leg 

(rem)

Appendix A-3 

Entry No.

Colon

(rem)

External Dose (Occupational)

 ▪ Recorded:

 <30 keV Photons 26–31 0.394 26–31 0.394 26–31 0.009

 30–250 keV Photons 1–15 1.496 1–15 1.496 1–15 1.117

 0.1–2 MeV Neutrons 16–25 2.134 16–25 2.134 16–25 1.046

 ▪ Missed Dose:

 <30 keV Photons 66–71 0.105 66–71 0.105 66–71 0.003

 30–250 keV Photons 32–52 3.130 32–52 3.130 32–52 2.337

 0.1–2 MeV Neutrons 53–65 6.356 53–65 6.356 53–65 3.116

 ▪ Onsite Ambient Dose:

 30–250 keV Photons 86–101 2.904 86–101 2.904 86–101 1.138

 ▪ Occupational Medical Dose:

 PFG exam, 1959 85 2.060 85 0.000 85 0.007

 30–250 keV Photons 72–84 0.749 72–84 0.001 72–84 0.006

Internal Dose:

 Alpha 102–158 0.039 102–158 0.039 102–164 0.050

 >250 keV Photons 159–193 0.004 159–193 0.004 165–199 0.013

 >15 keV Electrons 194–250 0.215 194–250 0.215 200–262 3.367

Total 19.587 16.779 12.210

POC 8.71% 7.07% 25.07%

SC&A determined the probability of causation (POC) for this case using the annual doses as 

input into the NIOSH POC program. The total doses and combined POCs shown in Table 1-2

produced a total POC of 36.43%.
Effective Date:

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2.0 EXTERNAL DOSES 

To perform the external DR, SC&A analyzed the EE’s DOE files containing the dosimeter 

readings and x-ray examinations. Dosimetry and x-ray exam records were available for the time 

periods the EE was employed at the Hanford Site from [redact], to [redact]. Individual 

dosimeter results and annual dosimeter totals were available for the years worked. 

SC&A used the DR parameters associated with work in the 300 Area as recommended in 

ORAUT-TKBS-0006-6, which consisted of an energy range of 100% 30–250 keV photons and 

100% 0.1–2 MeV neutrons. Dose conversion factors (DCFs) from OCAS-IG-001 were used to 

calculate the external dose to the colon. A DCF of 1.0 was used for the skin dose calculations. 

To account for low-energy photons from plutonium, doses from <30 keV photons were also 

assigned based on the guidance in OCAS-IG-001, Table 4.1a, “Special Dose Conversion Factors 

(DCF's) for Plutonium,” (page 38). The parameters used to calculate the external dose are shown 

in Table 2-1. 

Table 2-1. External Dose Parameters 

300 Area [redact]–[redact]

Photons Neutrons

Energy Range <30 keV 30–250 keV 30–250 keV

Energy Fraction 100% 100% 100%

Organ DCF (colon) 0.024 0.747 0.490

Organ DCF (skin) 1 1 1

ICRP 60 CF NA NA 1.91

2.1 RECORDED PHOTON DOSE 

Dosimetry monitoring records for the EE were available beginning in [redact]. SC&A assumed 

100% anterior/posterior (AP) exposures and used the recorded photon dose values that were 

>LOD/2 to assign photon doses using the parameters previously described.

Example of [redact] recorded photon dose calculations – SC&A calculated the recorded 

[redact] photon doses to the colon and skin as follows:

Records show in [redact] the EE received a deep dose of 0.340 rem. The photon dose was 

assumed to be 100% 30–250 keV. Dose conversion factors (DCFs) of 0.747 for the colon

and 1.0 for the skin were applied. 

30–250 keV photon dose (colon) = D.D. × DCF 

= 0.340 × 0.747

= 0.254 rem 

30–250 keV photon dose (skin) = D.D. × DCF 

= 0.340 × 1.0 

= 0.340 rem 
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The dose from <30 keV photons is calculated in a similar manner using the [redact] nonpenetrating dose (NP.D.) of 0.080 rem and DCFs of 0.024 for the colon and 1.0 for the skin.

<30 keV photon dose (colon) = NP.D. × DCF 

= 0.080 × 0.024

= 0.002 rem 

<30 keV photon dose (skin) = NP.D. × DCF 

= 0.080 × 1.0 

= 0.080 rem 

SC&A’s calculated 30–250 keV doses are shown as IREP entry #6 in Appendices A-1, A-2, and 

A-3. SC&A assigned a total recorded 30–250 keV photon dose of 1.117 rem to the colon and 

1.496 rem to the skin, as shown in IREP entries #1–#15 of all three appendices. 

The <30 keV doses are shown as IREP entry #29 in Appendices A-1, A-2, and A-3. SC&A 

assigned a total recorded <30 keV photon dose of 0.009 rem to the colon and 0.394 rem to the 

skin, as shown in IREP entries #26–#31 of Appendices A-1, A-2, and A-3.

2.2 MISSED PHOTON DOSE 

SC&A analyzed the number of physical zeros and potential zeros based on the EE’s badge 

exchange cycle at the time (weekly or monthly) using the guidance in OCAS-IG-001 and a bestestimate reasonable approach to arrive at a total 163 zeros, or <LOD/2 values, for photons. 

SC&A used the annual number of zeros, the LOD/2 value of 0.020 rem ([redact]–[redact]) and 

0.010 rem (after [redact]), the DR parameters as listed above, and the applicable DCF to 

determine the annual missed photon dose. 

Example of [redact] missed photon dose calculations – SC&A calculated the missed [redact]

photon dose to the colon and skin as follows:

Records show in [redact], the EE’s dosimeter results show 1 zero. The photon dose was 

assumed to be 100% 30–250 keV. Dose conversion factors (DCFs) of 0.747 for the colon

and 1.0 for the skin were applied. 

Missed Photon Dose (colon) = (# zeros × LOD/2) × DCF 

= (1 × 0.020 rem) × 0.747 

 = 0.015 rem 

Missed Photon Dose (skin) = (# zeros × LOD/2) × DCF 

= (1 × 0.020 rem) × 1.0 

 = 0.020 rem 

SC&A’s calculated 30–250 keV missed doses are shown as IREP entry #40 in Appendices A-1, 

A-2, and A-3. SC&A assigned a total 30–250 keV photon missed dose of 2.337 rem to the colon 

and 3.130 rem to the skin, as shown in IREP entries #32–#52 of all three appendices. 
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The missed dose from <30 keV photons was assessed per the guidance in Attachment C of 

ORAUT-OTIB-0017. Accordingly, missed dose would be assessed when the non-penetrating 

reading is zero and the penetrating reading is non zero. The EE’s records shows seven dosimeter 

cycles where this occurs. An LOD/2 of 0.015 rem and DCFs of 0.024 for the colon and 1.0 for 

the skin were applied. 

SC&A assigned a total missed dose from <30 keV photons of 0.003 rem to the colon and 

0.105 rem to the skin, as shown in IREP entries #66–#71 of all three appendices. 

2.3 RECORDED NEUTRON DOSE 

The EE was not specifically monitored for neutrons. SC&A assigned neutron doses based on the 

EE’s work location and guidance in Section 6.7.3.4 of ORAUT-TKBS-0006-6. The neutron 

doses were calculated for 30–250 keV neutrons using the recorded gamma dose and applying the 

geometric mean (GM) neutron-to-photon ratio from Table 6-22 of ORAUT-TKBS-0006-6, as 

well as the applicable ICRP and organ DCFs. 

Example of [redact] neutron dose calculations – SC&A calculated the [redact] neutron doses to 

the colon and skin as follows:

Records show in [redact] the EE received a deep dose of 0.340 rem. The neutron dose was 

assumed to be 100% 30–250 keV. The ICRP-60 CF of 1.91, a neutron-to-photon ratio of 1.1, 

and DCFs of 0.490 for the colon and 1.0 for the skin were applied. 

Colon η dose (0.1–2 MeV) = (0.340 rem)(ICRP-60 CF)(DCF)(η/photon ratio) 

 = (0.340 rem)(1.91)(0.490)(1.1) 

= 0.350 rem

Skin η dose (0.1–2 MeV) = (0.340 rem)(ICRP-60 CF)(DCF)(η/photon ratio) 

 = (0.340 rem)(1.91)(1.0)(1.1) 

= 0.714 rem 

SC&A’s calculated values of 0.350 rem to the colon and 0.714 rem to the skin are shown as 

IREP entry #21 of Appendices A-1, A-2, and A-3. SC&A assigned a total neutron dose from 

30–250 keV neutrons of 1.046 rem to the colon and 2.134 rem to the skin, as shown in IREP 

entries #16–#25 of all three appendices. 

2.4 MISSED NEUTRON DOSE 

SC&A assigned missed neutron doses based on the EE’s work location and number of zero 

dosimeter readings. The missed neutron doses were calculated for 30–250 keV neutrons using 

the annual number of zeros and applying the GM neutron-to-photon ratio from Table 6-22 of 

ORAUT-TKBS-0006-6, as well as the applicable ICRP and organ DCFs. 
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Example of [redact] missed neutron dose calculations – SC&A calculated the [redact] neutron

doses to the colon and skin as follows:

Colon missed η dose = (1 zero reading)(0.040 rem/2)(ICRP-60 CF)(DCF)(η/photon ratio) 

= (0.020 rem)(1.91)(0.490)(1.1) 

= 0.021 rem

Skin missed η dose = (1 zero reading)(0.040 rem/2)(ICRP-60 CF)(DCF)(η/photon ratio) 

= (0.020 rem)(1.91)(1.0)(1.1) 

= 0.042 rem

SC&A’s calculated missed neutron doses of 0.021 rem to the colon and 0.042 rem to the skin are 

shown as IREP entry #61 of Appendices A-1, A-2, and A-3. SC&A assigned a total missed 

neutron dose from 30–250 keV neutrons of 3.116 rem to the colon and 6.356 rem to the skin, as 

shown in IREP entries #53–#65 of all three appendices. 

2.5 OCCUPATIONAL MEDICAL DOSE 

The DOE records show that the EE received 1 photofluorography (PFG) x-ray exam in [redact]

and 14 posterior-anterior (PA) x-ray exams from [redact]–[redact]. 

SC&A used the organ dose values recommended in Tables 3-6, 3-8, 3-10, and 3-11 of ORAUTTKBS-0006-3 as a function of the year the exam was performed to calculate the occupational 

medical dose. SC&A assigned doses for the PFG exam of 0.007 rem to the colon, 2.060 rem to 

chest, and <0.001 rem to the leg as shown in entry #85 of the IREP Input tables in the 

appendices. SC&A also assigned a total dose from the PA exams of 0.006 rem to the colon, 

0.749 rem to chest, and 0.001 rem to the leg, as shown in entries #72–#84 of the IREP Input 

tables in the appendices. These doses are summarized in Table 1-2 above, and detailed in 

Appendices A-1, A-2, and A-3. 

2.6 ONSITE AMBIENT DOSE 

SC&A assessed onsite ambient dose from the beginning of the EE’s employment until [redact]

in accordance with ORAUT-PROC-0060.

Table 4-8 of ORAUT-TKBS-0006-4 shows the 0.055 rem/yr as the maximum external gamma 

dose for [redact]. Using the isotropic DCFs of 0.803 for the colon and 1.0 for the skin, and 

correcting for 2,600 hours/yr, an ambient dose was calculated as follows: 

1950 Ambient dose (colon) = Annual Dose × DCF × 2,600/2,000

= 0.055 rem/yr × 0.392 × 1.3

= 0.028 rem 

1950 Ambient dose (skin) = Annual Dose × DCF × 2,600/2,000 

= 0.055 rem/yr × 1.0 × 1.3

= 0.072 rem 
Effective Date:

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SC&A’s calculated ambient doses of 0.028 rem to the colon and 0.072 rem to the skin are shown 

as IREP entry #86 of Appendices A-1, A-2, and A-3. SC&A assigned a total ambient dose of 

1.138 rem to the colon and 2.904 rem to the skin, as shown in IREP entries #86–#101 of all three 

appendices. 
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3.0 INTERNAL DOSES 

The EE’s internal dose monitoring records were reviewed and showed the EE was monitored for 

internal exposures while at Hanford from [redact] until [redact]. The EE was monitored for 

potential plutonium exposure via urine samples and fission product exposure via a whole body 

count (WBC). 

3.1 MISSED DOSE FROM PLUTONIUM/AMERICIUM 

The DOE records indicate the EE was monitored in six in-vitro analyses for plutonium from 

[redact], to [redact], with all of the results reported as less than the level of detection of the 

analysis. SC&A calculated a chronic plutonium intake based on 0.025 dpm/ sample, half the 

detection level of the bioassay. Then, assuming the plutonium material was 10-year-aged fuelgrade plutonium and using the Hanford Pu Mix Intake Rate Calculator Workbook 1.0, 

determined the intake rates for Pu-239, Pu-238, Pu-241, and Am-241. 

Table 3-1. Calculated Intake Rates 

Radionuclide Type Time Period Intake Rate 

(dpm/day)

Pu-238 S [redact]–[redact] 0.69

Pu-239/240 S [redact]–[redact] 3.5

Pu-241 S [redact]–[redact] 83.77

Am-241 S [redact]–[redact] 1.71

These intake rates and time period were input in the Chronic Annual Dose Workbook (CADW) 

to calculate the internal doses. 

Some forms of plutonium exhibit longer lung clearance times than those used in the International 

Commission on Radiological Protection Publication 66 (ICRP 1994) model for insoluble 

(Type S) plutonium. This can result in higher doses to some organs, so dose modification factors 

were developed, as described in ORAUT-OTIB-0049, Technical Information Bulletin: 

Estimating Doses for Plutonium Strongly Retained in the Lung. The EE’s dose is estimated to 

the skin and colon. 

Following the guidance in ORAUT-OTIB-0049, the dose to the skin was adjusted by a factor of 

4 for doses after the time of the last urine bioassay measurement. All of the colon doses were 

increased by a factor of 4. 

The total doses from plutonium/americium are 0.039 rem to the skin and 0.050 rem to the colon. 

3.2 INTERNAL DOSE FROM FISSION PRODUCTS 

The EE had one WBC on [redact], which was above the limits of detection (LOD) for Cs-137 

and Na-24. The Cs-137 results were attributed to fallout that is ever-present in the United States 

as a result of foreign and domestic atmospheric weapons testing. Therefore, the Cs-137 exposure 

was not considered to be occupational exposure. The Na-24 results are evaluated below.
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3.2.1 Sodium-24 Dose

The EE had positive WBC results for Na-24 on [redact]. This positive result was used with the 

Integrated Modules for Bioassay Analysis (IMBA) computer code to determine a chronic 

ingestion of 457 pCi/day of Na-24 for the entire period of employment, from [redact], through 

[redact]. The skin and colon doses from the Na-24 intake were then calculated using the 

CADW. The total doses from Na-24 are 0.004 rem to the skin and 0.013 rem to the colon.

3.2.2 Other Fission Products 

The Hanford Radionuclide Chooser Workbook and the detection levels for the WBC were used 

to determine the most claimant-favorable radionuclide to use for the missed dose calculations 

from fission products. Ce-144 was found to be the most claimant-favorable assumption, so the 

intakes were assessed using Ce-144 (Type S) for the colon and Ce-144 (Type M) for the skin. 

The detection level for the Ce-144 WBC was assumed to be 200 nCi. The resulting chronic 

intake was 2,606 nCi/year for the colon and 1,409 nCi/year for the skin for the time period from 

1950 until 1983. The skin and colon doses from the Ce-144 intakes were then calculated using 

the CADW. The total doses from Ce-144 are 0.215 rem to the skin and 3.367 rem to the colon. 

3.3 ENVIRONMENTAL DOSE 

While employed at Hanford, the EE was potentially exposed to environmental internal 

exposures. SC&A used the CADW tool and intake information from Table A-12 of ORAUTTKBS-0006-4 to derive the environmental intakes and resulting doses. The annual doses from 

environmental intakes were less than 0.001 rem and not included in the final IREP Input table.
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4.0 CATI REPORT AND RADIOLOGICAL INCIDENTS 

SC&A reviewed the EE’s DOE records and CATI report to determine if the EE was involved in 

any radiological incidents. SC&A did not find any documentation of radiological incidents that 

would impact the radiation doses assigned in this case. 
Effective Date:

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5.0 SUMMARY CONCLUSIONS 

This DR used best-estimate methods to obtain reasonable external and internal dose assignments. 

The derived total doses provided for a POC <50%. 

The total POC for the SCC on the chest, SCC on the leg, and colon cancer was calculated using 

the NIOSH-Interactive RadioEpidemiological Program (v.5.7.1) and determined to be 36.43%.
Effective Date:

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REFERENCES 

ICRP (International Commission on Radiological Protection) 1991. Recommendations of the 

International Commission on Radiological Protection, ICRP Publication 60, Pergamon Press, 

Oxford, England. 

ICRP (International Commission on Radiological Protection), 1994, Human Respiratory Tract 

Model for Radiological Protection, Publication 66, Pergamon Elsevier Science Inc., Tarrytown, 

New York. 

OCAS-IG-001. 2007. External Dose Reconstruction Implementation Guideline, Rev. 3, 

National Institute for Occupational Safety and Health, Office of Compensation Analysis and 

Support, Cincinnati, Ohio. November 21, 2007. 

ORAUT-OTIB-0005. 2011. Technical Information Bulletin: Internal Dosimetry Organ, 

External Dosimetry Organ, and IREP Model Selection by ICD-9 Code, Rev. 04, Oak Ridge 

Associated Universities Team, Cincinnati, Ohio. April 18, 2011. 

ORAUT-OTIB-0017. 2005. Technical Information Bulletin: Interpretation of Dosimetry Data 

for Assignment of Shallow Dose, Rev. 01. Oak Ridge Associated Universities Team, Cincinnati, 

Ohio. October 11, 2005. 

ORAUT-OTIB-0049. 2010. Technical Information Bulletin: Estimating Doses for Plutonium 

Strongly Retained in the Lung, Rev. 01 PC-2. Oak Ridge Associated Universities Team, 

Cincinnati, Ohio. November 29, 2010. 

ORAUT-PROC-0060. 2006. Occupational On-Site Ambient Dose Reconstruction for DOE 

Sites, Rev. 01. Oak Ridge Associated Universities Team, Cincinnati, Ohio. June 28, 2006. 

ORAUT-TKBS-0006-3. 2010. Hanford Site – Occupational Medical Dose, Rev. 03. Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010. 

ORAUT-TKBS-0006-4. 2010. Hanford Site – Occupational Environmental Dose, Rev. 03. 

Oak Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010. 

ORAUT-TKBS-0006-6. 2010. Hanford Site – Occupational External Dose, Rev. 04. Oak 

Ridge Associated Universities Team, Cincinnati, Ohio. January 7, 2010. 
Effective Date:

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APPENDIX A-1: IREP INPUT – SCC ON CHEST 

EXPOSURE INFORMATION

Number of exposures

250

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

1 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

2 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

3 [redact] acute photons E=30–250 keV Constant 0.040 0.000 0.000

4 [redact] acute photons E=30–250 keV Constant 0.040 0.000 0.000

5 [redact] acute photons E=30–250 keV Constant 0.046 0.000 0.000

6 [redact] acute photons E=30–250 keV Constant 0.340 0.000 0.000

7 [redact] acute photons E=30–250 keV Constant 0.240 0.000 0.000

8 [redact] acute photons E=30–250 keV Constant 0.110 0.000 0.000

9 [redact] acute photons E=30–250 keV Constant 0.070 0.000 0.000

10 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

11 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

12 [redact] acute photons E=30–250 keV Constant 0.330 0.000 0.000

13 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

14 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

15 [redact] acute photons E=30–250 keV Constant 0.020 0.000 0.000

16 [redact] chronic neutrons E=30–250 keV Constant 0.105 0.000 0.000

17 [redact] chronic neutrons E=30–250 keV Constant 0.063 0.000 0.000

18 [redact] chronic neutrons E=30–250 keV Constant 0.084 0.000 0.000

19 [redact] chronic neutrons E=30–250 keV Constant 0.084 0.000 0.000

20 [redact] chronic neutrons E=30–250 keV Constant 0.097 0.000 0.000

21 [redact] chronic neutrons E=30–250 keV Constant 0.714 0.000 0.000

22 [redact] chronic neutrons E=30–250 keV Constant 0.504 0.000 0.000

23 [redact] chronic neutrons E=30–250 keV Constant 0.231 0.000 0.000

24 [redact] chronic neutrons E=30–250 keV Constant 0.147 0.000 0.000

25 [redact] chronic neutrons E=30–250 keV Constant 0.105 0.000 0.000

26 [redact] acute photons E<30 keV Constant 0.030 0.000 0.000

27 [redact] acute photons E<30 keV Constant 0.048 0.000 0.000

28 [redact] acute photons E<30 keV Constant 0.036 0.000 0.000

29 [redact] acute photons E<30 keV Constant 0.080 0.000 0.000

30 [redact] acute photons E<30 keV Constant 0.160 0.000 0.000

31 [redact] acute photons E<30 keV Constant 0.040 0.000 0.000

32 [redact] acute photons E=30–250 keV Lognormal 0.600 1.520 0.000

33 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

34 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

35 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

36 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

37 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

38 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

39 [redact] acute photons E=30–250 keV Lognormal 0.080 1.520 0.000

40 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

41 [redact] acute photons E=30–250 keV Lognormal 0.040 1.520 0.000

42 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

43 [redact] acute photons E=30–250 keV Lognormal 0.080 1.520 0.000

44 [redact] acute photons E=30–250 keV Lognormal 0.040 1.520 0.000

45 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

46 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

47 [redact] acute photons E=30–250 keV Lognormal 0.030 1.520 0.000
Effective Date:

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Appendix A-1: IREP Input – SCC on Chest (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

48 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

49 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

50 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

51 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

52 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

53 [redact] chronic neutrons E=30–250 keV Lognormal 1.271 1.520 0.000

54 [redact] chronic neutrons E=30–250 keV Lognormal 1.102 1.520 0.000

55 [redact] chronic neutrons E=30–250 keV Lognormal 1.102 1.520 0.000

56 [redact] chronic neutrons E=30–250 keV Lognormal 1.102 1.520 0.000

57 [redact] chronic neutrons E=30–250 keV Lognormal 1.102 1.520 0.000

58 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

59 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

60 [redact] chronic neutrons E=30–250 keV Lognormal 0.169 1.520 0.000

61 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

62 [redact] chronic neutrons E=30–250 keV Lognormal 0.085 1.520 0.000

63 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

64 [redact] chronic neutrons E=30–250 keV Lognormal 0.169 1.520 0.000

65 [redact] chronic neutrons E=30–250 keV Lognormal 0.085 1.520 0.000

66 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

67 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

68 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

69 [redact] acute photons E<30 keV Lognormal 0.030 1.520 0.000

70 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

71 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

72 [redact] acute photons E=30–250 keV Normal 0.108 0.032 0.000

73 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

74 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

75 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

76 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

77 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

78 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

79 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

80 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

81 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

82 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

83 [redact] acute photons E=30–250 keV Normal 0.054 0.016 0.000

84 [redact] acute photons E=30–250 keV Normal 0.047 0.014 0.000

85 [redact] acute photons E=30–250 keV Normal 2.060 0.618 0.000

86 [redact] chronic photons E=30–250 keV Constant 0.072 0.000 0.000

87 [redact] chronic photons E=30–250 keV Constant 0.072 0.000 0.000

88 [redact] chronic photons E=30–250 keV Constant 0.125 0.000 0.000

89 [redact] chronic photons E=30–250 keV Constant 0.345 0.000 0.000

90 [redact] chronic photons E=30–250 keV Constant 0.451 0.000 0.000

91 [redact] chronic photons E=30–250 keV Constant 0.350 0.000 0.000

92 [redact] chronic photons E=30–250 keV Constant 0.225 0.000 0.000

93 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

94 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

95 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

96 [redact] chronic photons E=30–250 keV Constant 0.140 0.000 0.000

97 [redact] chronic photons E=30–250 keV Constant 0.163 0.000 0.000

98 [redact] chronic photons E=30–250 keV Constant 0.204 0.000 0.000
Effective Date:

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Appendix A-1: IREP Input – SCC on Chest (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

99 [redact] chronic photons E=30–250 keV Constant 0.163 0.000 0.000

100 [redact] chronic photons E=30–250 keV Constant 0.096 0.000 0.000

101 [redact] chronic photons E=30–250 keV Constant 0.040 0.000 0.000

102 [redact] chronic alpha Lognormal 0.000 3.000 0.000

103 [redact] chronic alpha Lognormal 0.000 3.000 0.000

104 [redact] chronic alpha Lognormal 0.000 3.000 0.000

105 [redact] chronic alpha Lognormal 0.000 3.000 0.000

106 [redact] chronic alpha Lognormal 0.000 3.000 0.000

107 [redact] chronic alpha Lognormal 0.000 3.000 0.000

108 [redact] chronic alpha Lognormal 0.000 3.000 0.000

109 [redact] chronic alpha Lognormal 0.000 3.000 0.000

110 [redact] chronic alpha Lognormal 0.000 3.000 0.000

111 [redact] chronic alpha Lognormal 0.000 3.000 0.000

112 [redact] chronic alpha Lognormal 0.000 3.000 0.000

113 [redact] chronic alpha Lognormal 0.000 3.000 0.000

114 [redact] chronic alpha Lognormal 0.000 3.000 0.000

115 [redact] chronic alpha Lognormal 0.000 3.000 0.000

116 [redact] chronic alpha Lognormal 0.001 3.000 0.000

117 [redact] chronic alpha Lognormal 0.001 3.000 0.000

118 [redact] chronic alpha Lognormal 0.001 3.000 0.000

119 [redact] chronic alpha Lognormal 0.001 3.000 0.000

120 [redact] chronic alpha Lognormal 0.001 3.000 0.000

121 [redact] chronic alpha Lognormal 0.001 3.000 0.000

122 [redact] chronic alpha Lognormal 0.001 3.000 0.000

123 [redact] chronic alpha Lognormal 0.001 3.000 0.000

124 [redact] chronic alpha Lognormal 0.001 3.000 0.000

125 [redact] chronic alpha Lognormal 0.001 3.000 0.000

126 [redact] chronic alpha Lognormal 0.001 3.000 0.000

127 [redact] chronic alpha Lognormal 0.001 3.000 0.000

128 [redact] chronic alpha Lognormal 0.001 3.000 0.000

129 [redact] chronic alpha Lognormal 0.001 3.000 0.000

130 [redact] chronic alpha Lognormal 0.001 3.000 0.000

131 [redact] chronic alpha Lognormal 0.001 3.000 0.000

132 [redact] chronic alpha Lognormal 0.001 3.000 0.000

133 [redact] chronic alpha Lognormal 0.001 3.000 0.000

134 [redact] chronic alpha Lognormal 0.001 3.000 0.000

135 [redact] chronic alpha Lognormal 0.001 3.000 0.000

136 [redact] chronic alpha Lognormal 0.001 3.000 0.000

137 [redact] chronic alpha Lognormal 0.001 3.000 0.000

138 [redact] chronic alpha Lognormal 0.001 3.000 0.000

139 [redact] chronic alpha Lognormal 0.001 3.000 0.000

140 [redact] chronic alpha Lognormal 0.001 3.000 0.000

141 [redact] chronic alpha Lognormal 0.001 3.000 0.000

142 [redact] chronic alpha Lognormal 0.001 3.000 0.000

143 [redact] chronic alpha Lognormal 0.001 3.000 0.000

144 [redact] chronic alpha Lognormal 0.001 3.000 0.000

145 [redact] chronic alpha Lognormal 0.001 3.000 0.000

146 [redact] chronic alpha Lognormal 0.001 3.000 0.000

147 [redact] chronic alpha Lognormal 0.001 3.000 0.000

148 [redact] chronic alpha Lognormal 0.001 3.000 0.000

149 [redact] chronic alpha Lognormal 0.001 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

21 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-1: IREP Input – SCC on Chest (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter

2

Parameter 

3

150 [redact] chronic alpha Lognormal 0.001 3.000 0.000

151 [redact] chronic alpha Lognormal 0.001 3.000 0.000

152 [redact] chronic alpha Lognormal 0.001 3.000 0.000

153 [redact] chronic alpha Lognormal 0.001 3.000 0.000

154 [redact] chronic alpha Lognormal 0.001 3.000 0.000

155 [redact] chronic alpha Lognormal 0.001 3.000 0.000

156 [redact] chronic alpha Lognormal 0.001 3.000 0.000

157 [redact] chronic alpha Lognormal 0.001 3.000 0.000

158 [redact] chronic alpha Lognormal 0.001 3.000 0.000

159 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

160 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

161 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

162 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

163 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

164 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

165 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

166 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

167 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

168 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

169 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

170 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

171 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

172 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

173 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

174 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

175 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

176 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

177 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

178 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

179 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

180 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

181 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

182 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

183 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

184 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

185 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

186 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

187 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

188 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

189 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

190 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

191 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

192 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

193 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

194 [redact] chronic electrons E>15 keV Lognormal 0.002 3.000 0.000

195 [redact] chronic electrons E>15 keV Lognormal 0.005 3.000 0.000

196 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

197 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

198 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

199 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

200 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

22 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-1: IREP Input – SCC on Chest (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

201 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

202 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

203 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

204 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

205 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

206 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

207 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

208 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

209 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

210 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

211 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

212 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

213 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

214 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

215 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

216 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

217 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

218 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

219 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

220 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

221 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

222 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

223 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

224 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

225 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

226 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

227 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

228 [redact] chronic electrons E>15 keV Lognormal 0.004 3.000 0.000

229 [redact] chronic electrons E>15 keV Lognormal 0.002 3.000 0.000

230 [redact] chronic electrons E>15 keV Lognormal 0.001 3.000 0.000

231 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

232 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

233 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

234 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

235 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

236 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

237 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

238 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

239 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

240 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

241 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

242 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

243 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

244 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

245 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

246 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

247 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

248 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

249 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

250 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

23 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

APPENDIX A-2: IREP INPUT – SCC ON LEG 

EXPOSURE INFORMATION

Number of exposures

250

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

1 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

2 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

3 [redact] acute photons E=30–250 keV Constant 0.040 0.000 0.000

4 [redact] acute photons E=30–250 keV Constant 0.040 0.000 0.000

5 [redact] acute photons E=30–250 keV Constant 0.046 0.000 0.000

6 [redact] acute photons E=30–250 keV Constant 0.340 0.000 0.000

7 [redact] acute photons E=30–250 keV Constant 0.240 0.000 0.000

8 [redact] acute photons E=30–250 keV Constant 0.110 0.000 0.000

9 [redact] acute photons E=30–250 keV Constant 0.070 0.000 0.000

10 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

11 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

12 [redact] acute photons E=30–250 keV Constant 0.330 0.000 0.000

13 [redact] acute photons E=30–250 keV Constant 0.050 0.000 0.000

14 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

15 [redact] acute photons E=30–250 keV Constant 0.020 0.000 0.000

16 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.105 0.000 0.000

17 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.063 0.000 0.000

18 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.084 0.000 0.000

19 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.084 0.000 0.000

20 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.097 0.000 0.000

21 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.714 0.000 0.000

22 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.504 0.000 0.000

23 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.231 0.000 0.000

24 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.147 0.000 0.000

25 [redact] chronic neutrons E=100 keV–2 MeV Constant 0.105 0.000 0.000

26 [redact] acute photons E<30 keV Constant 0.030 0.000 0.000

27 [redact] acute photons E<30 keV Constant 0.048 0.000 0.000

28 [redact] acute photons E<30 keV Constant 0.036 0.000 0.000

29 [redact] acute photons E<30 keV Constant 0.080 0.000 0.000

30 [redact] acute photons E<30keV Constant 0.160 0.000 0.000

31 [redact] acute photons E<30keV Constant 0.040 0.000 0.000

32 [redact] acute photons E=30–250 keV Lognormal 0.600 1.520 0.000

33 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

34 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

35 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

36 [redact] acute photons E=30–250 keV Lognormal 0.520 1.520 0.000

37 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

38 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

39 [redact] acute photons E=30–250 keV Lognormal 0.080 1.520 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

24 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-2: IREP Input – SCC on Leg (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

40 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

41 [redact] acute photons E=30–250 keV Lognormal 0.040 1.520 0.000

42 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

43 [redact] acute photons E=30–250 keV Lognormal 0.080 1.520 0.000

44 [redact] acute photons E=30–250 keV Lognormal 0.040 1.520 0.000

45 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

46 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

47 [redact] acute photons E=30–250 keV Lognormal 0.030 1.520 0.000

48 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

49 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

50 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

51 [redact] acute photons E=30–250 keV Lognormal 0.010 1.520 0.000

52 [redact] acute photons E=30–250 keV Lognormal 0.020 1.520 0.000

53 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 1.271 1.520 0.000

54 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 1.102 1.520 0.000

55 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 1.102 1.520 0.000

56 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 1.102 1.520 0.000

57 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 1.102 1.520 0.000

58 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.042 1.520 0.000

59 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.042 1.520 0.000

60 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.169 1.520 0.000

61 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.042 1.520 0.000

62 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.085 1.520 0.000

63 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.042 1.520 0.000

64 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.169 1.520 0.000

65 [redact] chronic neutrons E=100 keV–2 MeV Lognormal 0.085 1.520 0.000

66 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

67 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

68 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

69 [redact] acute photons E<30 keV Lognormal 0.030 1.520 0.000

70 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

71 [redact] acute photons E<30 keV Lognormal 0.015 1.520 0.000

72 [redact] acute photons E=30–250 keV Normal 0.000 0.032 0.000

73 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

74 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

75 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

76 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

77 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

78 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

79 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

80 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

81 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

25 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-2: IREP Input – SCC on Leg (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

82 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

83 [redact] acute photons E=30–250 keV Normal 0.000 0.016 0.000

84 [redact] acute photons E=30–250 keV Normal 0.000 0.014 0.000

85 [redact] acute photons E=30–250 keV Normal 0.001 0.618 0.000

86 [redact] chronic photons E=30–250 keV Constant 0.072 0.000 0.000

87 [redact] chronic photons E=30–250 keV Constant 0.072 0.000 0.000

88 [redact] chronic photons E=30–250 keV Constant 0.125 0.000 0.000

89 [redact] chronic photons E=30–250 keV Constant 0.345 0.000 0.000

90 [redact] chronic photons E=30–250 keV Constant 0.451 0.000 0.000

91 [redact] chronic photons E=30–250 keV Constant 0.350 0.000 0.000

92 [redact] chronic photons E=30–250 keV Constant 0.225 0.000 0.000

93 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

94 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

95 [redact] chronic photons E=30–250 keV Constant 0.153 0.000 0.000

96 [redact] chronic photons E=30–250 keV Constant 0.140 0.000 0.000

97 [redact] chronic photons E=30–250 keV Constant 0.163 0.000 0.000

98 [redact] chronic photons E=30–250 keV Constant 0.204 0.000 0.000

99 [redact] chronic photons E=30–250 keV Constant 0.163 0.000 0.000

100 [redact] chronic photons E=30–250 keV Constant 0.096 0.000 0.000

101 [redact] chronic photons E=30–250 keV Constant 0.040 0.000 0.000

102 [redact] chronic alpha Lognormal 0.000 3.000 0.000

103 [redact] chronic alpha Lognormal 0.000 3.000 0.000

104 [redact] chronic alpha Lognormal 0.000 3.000 0.000

105 [redact] chronic alpha Lognormal 0.000 3.000 0.000

106 [redact] chronic alpha Lognormal 0.000 3.000 0.000

107 [redact] chronic alpha Lognormal 0.000 3.000 0.000

108 [redact] chronic alpha Lognormal 0.000 3.000 0.000

109 [redact] chronic alpha Lognormal 0.000 3.000 0.000

110 [redact] chronic alpha Lognormal 0.000 3.000 0.000

111 [redact] chronic alpha Lognormal 0.000 3.000 0.000

112 [redact] chronic alpha Lognormal 0.000 3.000 0.000

113 [redact] chronic alpha Lognormal 0.000 3.000 0.000

114 [redact] chronic alpha Lognormal 0.000 3.000 0.000

115 [redact] chronic alpha Lognormal 0.000 3.000 0.000

116 [redact] chronic alpha Lognormal 0.001 3.000 0.000

117 [redact] chronic alpha Lognormal 0.001 3.000 0.000

118 [redact] chronic alpha Lognormal 0.001 3.000 0.000

119 [redact] chronic alpha Lognormal 0.001 3.000 0.000

120 [redact] chronic alpha Lognormal 0.001 3.000 0.000

121 [redact] chronic alpha Lognormal 0.001 3.000 0.000

122 [redact] chronic alpha Lognormal 0.001 3.000 0.000

123 [redact] chronic alpha Lognormal 0.001 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

26 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-2: IREP Input – SCC on Leg (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

124 [redact] chronic alpha Lognormal 0.001 3.000 0.000

125 [redact] chronic alpha Lognormal 0.001 3.000 0.000

126 [redact] chronic alpha Lognormal 0.001 3.000 0.000

127 [redact] chronic alpha Lognormal 0.001 3.000 0.000

128 [redact] chronic alpha Lognormal 0.001 3.000 0.000

129 [redact] chronic alpha Lognormal 0.001 3.000 0.000

130 [redact] chronic alpha Lognormal 0.001 3.000 0.000

131 [redact] chronic alpha Lognormal 0.001 3.000 0.000

132 [redact] chronic alpha Lognormal 0.001 3.000 0.000

133 [redact] chronic alpha Lognormal 0.001 3.000 0.000

134 [redact] chronic alpha Lognormal 0.001 3.000 0.000

135 [redact] chronic alpha Lognormal 0.001 3.000 0.000

136 [redact] chronic alpha Lognormal 0.001 3.000 0.000

137 [redact] chronic alpha Lognormal 0.001 3.000 0.000

138 [redact] chronic alpha Lognormal 0.001 3.000 0.000

139 [redact] chronic alpha Lognormal 0.001 3.000 0.000

140 [redact] chronic alpha Lognormal 0.001 3.000 0.000

141 [redact] chronic alpha Lognormal 0.001 3.000 0.000

142 [redact] chronic alpha Lognormal 0.001 3.000 0.000

143 [redact] chronic alpha Lognormal 0.001 3.000 0.000

144 [redact] chronic alpha Lognormal 0.001 3.000 0.000

145 [redact] chronic alpha Lognormal 0.001 3.000 0.000

146 [redact] chronic alpha Lognormal 0.001 3.000 0.000

147 [redact] chronic alpha Lognormal 0.001 3.000 0.000

148 [redact] chronic alpha Lognormal 0.001 3.000 0.000

149 [redact] chronic alpha Lognormal 0.001 3.000 0.000

150 [redact] chronic alpha Lognormal 0.001 3.000 0.000

151 [redact] chronic alpha Lognormal 0.001 3.000 0.000

152 [redact] chronic alpha Lognormal 0.001 3.000 0.000

153 [redact] chronic alpha Lognormal 0.001 3.000 0.000

154 [redact] chronic alpha Lognormal 0.001 3.000 0.000

155 [redact] chronic alpha Lognormal 0.001 3.000 0.000

156 [redact] chronic alpha Lognormal 0.001 3.000 0.000

157 [redact] chronic alpha Lognormal 0.001 3.000 0.000

158 [redact] chronic alpha Lognormal 0.001 3.000 0.000

159 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

160 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

161 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

162 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

163 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

164 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

165 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

27 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-2: IREP Input – SCC on Leg (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

166 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

167 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

168 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

169 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

170 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

171 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

172 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

173 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

174 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

175 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

176 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

177 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

178 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

179 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

180 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

181 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

182 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

183 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

184 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

185 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

186 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

187 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

188 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

189 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

190 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

191 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

192 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

193 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

194 [redact] chronic electrons E>15 keV Lognormal 0.002 3.000 0.000

195 [redact] chronic electrons E>15 keV Lognormal 0.005 3.000 0.000

196 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

197 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

198 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

199 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

200 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

201 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

202 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

203 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

204 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

205 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

206 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

207 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

28 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-2: IREP Input – SCC on Leg (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

208 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

209 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

210 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

211 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

212 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

213 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

214 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

215 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

216 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

217 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

218 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

219 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

220 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

221 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

222 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

223 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

224 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

225 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

226 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

227 [redact] chronic electrons E>15 keV Lognormal 0.006 3.000 0.000

228 [redact] chronic electrons E>15 keV Lognormal 0.004 3.000 0.000

229 [redact] chronic electrons E>15 keV Lognormal 0.002 3.000 0.000

230 [redact] chronic electrons E>15 keV Lognormal 0.001 3.000 0.000

231 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

232 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

233 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

234 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

235 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

236 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

237 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

238 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

239 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

240 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

241 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

242 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

243 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

244 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

245 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

246 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

247 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

248 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

249 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

250 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

29 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

APPENDIX A-3: IREP INPUT – COLON 

EXPOSURE INFORMATION

Number of exposures

262

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

1 [redact] acute photons E=30–250 keV Constant 0.037 0.000 0.000

2 [redact] acute photons E=30–250 keV Constant 0.022 0.000 0.000

3 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

4 [redact] acute photons E=30–250 keV Constant 0.030 0.000 0.000

5 [redact] acute photons E=30–250 keV Constant 0.034 0.000 0.000

6 [redact] acute photons E=30–250 keV Constant 0.254 0.000 0.000

7 [redact] acute photons E=30–250 keV Constant 0.179 0.000 0.000

8 [redact] acute photons E=30–250 keV Constant 0.082 0.000 0.000

9 [redact] acute photons E=30–250 keV Constant 0.052 0.000 0.000

10 [redact] acute photons E=30–250 keV Constant 0.037 0.000 0.000

11 [redact] acute photons E=30–250 keV Constant 0.037 0.000 0.000

12 [redact] acute photons E=30–250 keV Constant 0.246 0.000 0.000

13 [redact] acute photons E=30–250 keV Constant 0.037 0.000 0.000

14 [redact] acute photons E=30–250 keV Constant 0.022 0.000 0.000

15 [redact] acute photons E=30–250 keV Constant 0.015 0.000 0.000

16 [redact] chronic neutrons E=30–250 keV Constant 0.051 0.000 0.000

17 [redact] chronic neutrons E=30–250 keV Constant 0.031 0.000 0.000

18 [redact] chronic neutrons E=30–250 keV Constant 0.041 0.000 0.000

19 [redact] chronic neutrons E=30–250 keV Constant 0.041 0.000 0.000

20 [redact] chronic neutrons E=30–250 keV Constant 0.047 0.000 0.000

21 [redact] chronic neutrons E=30–250 keV Constant 0.350 0.000 0.000

22 [redact] chronic neutrons E=30–250 keV Constant 0.247 0.000 0.000

23 [redact] chronic neutrons E=30–250 keV Constant 0.113 0.000 0.000

24 [redact] chronic neutrons E=30–250 keV Constant 0.072 0.000 0.000

25 [redact] chronic neutrons E=30–250 keV Constant 0.051 0.000 0.000

26 [redact] acute photons E<30 keV Constant 0.001 0.000 0.000

27 [redact] acute photons E<30 keV Constant 0.001 0.000 0.000

28 [redact] acute photons E<30 keV Constant 0.001 0.000 0.000

29 [redact] acute photons E<30 keV Constant 0.002 0.000 0.000

30 [redact] acute photons E<30 keV Constant 0.004 0.000 0.000

31 [redact] acute photons E<30 keV Constant 0.001 0.000 0.000

32 [redact] acute photons E=30–250 keV Lognormal 0.448 1.520 0.000

33 [redact] acute photons E=30–250 keV Lognormal 0.388 1.520 0.000

34 [redact] acute photons E=30–250 keV Lognormal 0.388 1.520 0.000

35 [redact] acute photons E=30–250 keV Lognormal 0.388 1.520 0.000

36 [redact] acute photons E=30–250 keV Lognormal 0.388 1.520 0.000

37 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

38 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

39 [redact] acute photons E=30–250 keV Lognormal 0.060 1.520 0.000

40 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

41 [redact] acute photons E=30–250 keV Lognormal 0.030 1.520 0.000

42 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

43 [redact] acute photons E=30–250 keV Lognormal 0.060 1.520 0.000

44 [redact] acute photons E=30–250 keV Lognormal 0.030 1.520 0.000

45 [redact] acute photons E=30–250 keV Lognormal 0.007 1.520 0.000

46 [redact] acute photons E=30–250 keV Lognormal 0.007 1.520 0.000

47 [redact] acute photons E=30–250 keV Lognormal 0.022 1.520 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

30 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-3: IREP Input – Colon (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

48 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

49 [redact] acute photons E=30–250 keV Lognormal 0.007 1.520 0.000

50 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

51 [redact] acute photons E=30–250 keV Lognormal 0.007 1.520 0.000

52 [redact] acute photons E=30–250 keV Lognormal 0.015 1.520 0.000

53 [redact] chronic neutrons E=30–250 keV Lognormal 0.623 1.520 0.000

54 [redact] chronic neutrons E=30–250 keV Lognormal 0.540 1.520 0.000

55 [redact] chronic neutrons E=30–250 keV Lognormal 0.540 1.520 0.000

56 [redact] chronic neutrons E=30–250 keV Lognormal 0.540 1.520 0.000

57 [redact] chronic neutrons E=30–250 keV Lognormal 0.540 1.520 0.000

58 [redact] chronic neutrons E=30–250 keV Lognormal 0.021 1.520 0.000

59 [redact] chronic neutrons E=30–250 keV Lognormal 0.021 1.520 0.000

60 [redact] chronic neutrons E=30–250 keV Lognormal 0.083 1.520 0.000

61 [redact] chronic neutrons E=30–250 keV Lognormal 0.021 1.520 0.000

62 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

63 [redact] chronic neutrons E=30–250 keV Lognormal 0.021 1.520 0.000

64 [redact] chronic neutrons E=30–250 keV Lognormal 0.083 1.520 0.000

65 [redact] chronic neutrons E=30–250 keV Lognormal 0.042 1.520 0.000

66 [redact] acute photons E<30 keV Lognormal 0.000 1.520 0.000

67 [redact] acute photons E<30 keV Lognormal 0.000 1.520 0.000

68 [redact] acute photons E<30 keV Lognormal 0.000 1.520 0.000

69 [redact] acute photons E<30 keV Lognormal 0.001 1.520 0.000

70 [redact] acute photons E<30 keV Lognormal 0.000 1.520 0.000

71 [redact] acute photons E<30 keV Lognormal 0.000 1.520 0.000

72 [redact] acute photons E=30–250 keV Normal 0.002 0.001 0.000

73 [redact] acute photons E=30–250 keV Normal 0.001 0.000 0.000

74 [redact] acute photons E=30–250 keV Normal 0.001 0.000 0.000

75 [redact] acute photons E=30–250 keV Normal 0.001 0.000 0.000

76 [redact] acute photons E=30–250 keV Normal 0.001 0.000 0.000

77 [redact] acute photons E=30–250 keV Normal 0.001 0.000 0.000

78 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

79 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

80 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

81 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

82 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

83 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

84 [redact] acute photons E=30–250 keV Normal 0.000 0.000 0.000

85 [redact] acute photons E=30–250 keV Normal 0.007 0.002 0.000

86 [redact] chronic photons E=30–250 keV Constant 0.028 0.000 0.000

87 [redact] chronic photons E=30–250 keV Constant 0.028 0.000 0.000

88 [redact] chronic photons E=30–250 keV Constant 0.049 0.000 0.000

89 [redact] chronic photons E=30–250 keV Constant 0.135 0.000 0.000

90 [redact] chronic photons E=30–250 keV Constant 0.177 0.000 0.000

91 [redact] chronic photons E=30–250 keV Constant 0.137 0.000 0.000

92 [redact] chronic photons E=30–250 keV Constant 0.088 0.000 0.000

93 [redact] chronic photons E=30–250 keV Constant 0.060 0.000 0.000

94 [redact] chronic photons E=30–250 keV Constant 0.060 0.000 0.000

95 [redact] chronic photons E=30–250 keV Constant 0.060 0.000 0.000

96 [redact] chronic photons E=30–250 keV Constant 0.055 0.000 0.000

97 [redact] chronic photons E=30–250 keV Constant 0.064 0.000 0.000

98 [redact] chronic photons E=30–250 keV Constant 0.080 0.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

31 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-3: IREP Input – Colon (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

99 [redact] chronic photons E=30–250 keV Constant 0.064 0.000 0.000

100 [redact] chronic photons E=30–250 keV Constant 0.038 0.000 0.000

101 [redact] chronic photons E=30–250 keV Constant 0.016 0.000 0.000

102 [redact] chronic alpha Lognormal 0.000 3.000 0.000

103 [redact] chronic alpha Lognormal 0.000 3.000 0.000

104 [redact] chronic alpha Lognormal 0.000 3.000 0.000

105 [redact] chronic alpha Lognormal 0.000 3.000 0.000

106 [redact] chronic alpha Lognormal 0.000 3.000 0.000

107 [redact] chronic alpha Lognormal 0.000 3.000 0.000

108 [redact] chronic alpha Lognormal 0.000 3.000 0.000

109 [redact] chronic alpha Lognormal 0.000 3.000 0.000

110 [redact] chronic alpha Lognormal 0.000 3.000 0.000

111 [redact] chronic alpha Lognormal 0.000 3.000 0.000

112 [redact] chronic alpha Lognormal 0.001 3.000 0.000

113 [redact] chronic alpha Lognormal 0.001 3.000 0.000

114 [redact] chronic alpha Lognormal 0.001 3.000 0.000

115 [redact] chronic alpha Lognormal 0.001 3.000 0.000

116 [redact] chronic alpha Lognormal 0.001 3.000 0.000

117 [redact] chronic alpha Lognormal 0.001 3.000 0.000

118 [redact] chronic alpha Lognormal 0.001 3.000 0.000

119 [redact] chronic alpha Lognormal 0.001 3.000 0.000

120 [redact] chronic alpha Lognormal 0.001 3.000 0.000

121 [redact] chronic alpha Lognormal 0.001 3.000 0.000

122 [redact] chronic alpha Lognormal 0.001 3.000 0.000

123 [redact] chronic alpha Lognormal 0.001 3.000 0.000

124 [redact] chronic alpha Lognormal 0.001 3.000 0.000

125 [redact] chronic alpha Lognormal 0.001 3.000 0.000

126 [redact] chronic alpha Lognormal 0.001 3.000 0.000

127 [redact] chronic alpha Lognormal 0.001 3.000 0.000

128 [redact] chronic alpha Lognormal 0.001 3.000 0.000

129 [redact] chronic alpha Lognormal 0.001 3.000 0.000

130 [redact] chronic alpha Lognormal 0.001 3.000 0.000

131 [redact] chronic alpha Lognormal 0.001 3.000 0.000

132 [redact] chronic alpha Lognormal 0.001 3.000 0.000

133 [redact] chronic alpha Lognormal 0.001 3.000 0.000

134 [redact] chronic alpha Lognormal 0.001 3.000 0.000

135 [redact] chronic alpha Lognormal 0.001 3.000 0.000

136 [redact] chronic alpha Lognormal 0.001 3.000 0.000

137 [redact] chronic alpha Lognormal 0.001 3.000 0.000

138 [redact] chronic alpha Lognormal 0.001 3.000 0.000

139 [redact] chronic alpha Lognormal 0.001 3.000 0.000

140 [redact] chronic alpha Lognormal 0.001 3.000 0.000

141 [redact] chronic alpha Lognormal 0.001 3.000 0.000

142 [redact] chronic alpha Lognormal 0.001 3.000 0.000

143 [redact] chronic alpha Lognormal 0.001 3.000 0.000

144 [redact] chronic alpha Lognormal 0.001 3.000 0.000

145 [redact] chronic alpha Lognormal 0.001 3.000 0.000

146 [redact] chronic alpha Lognormal 0.001 3.000 0.000

147 [redact] chronic alpha Lognormal 0.001 3.000 0.000

148 [redact] chronic alpha Lognormal 0.001 3.000 0.000

149 [redact] chronic alpha Lognormal 0.001 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

32 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-3: IREP Input – Colon (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

150 [redact] chronic alpha Lognormal 0.001 3.000 0.000

151 [redact] chronic alpha Lognormal 0.001 3.000 0.000

152 [redact] chronic alpha Lognormal 0.001 3.000 0.000

153 [redact] chronic alpha Lognormal 0.001 3.000 0.000

154 [redact] chronic alpha Lognormal 0.001 3.000 0.000

155 [redact] chronic alpha Lognormal 0.001 3.000 0.000

156 [redact] chronic alpha Lognormal 0.001 3.000 0.000

157 [redact] chronic alpha Lognormal 0.001 3.000 0.000

158 [redact] chronic alpha Lognormal 0.001 3.000 0.000

159 [redact] chronic alpha Lognormal 0.001 3.000 0.000

160 [redact] chronic alpha Lognormal 0.001 3.000 0.000

161 [redact] chronic alpha Lognormal 0.001 3.000 0.000

162 [redact] chronic alpha Lognormal 0.001 3.000 0.000

163 [redact] chronic alpha Lognormal 0.001 3.000 0.000

164 [redact] chronic alpha Lognormal 0.001 3.000 0.000

165 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

166 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

167 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

168 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

169 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

170 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

171 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

172 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

173 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

174 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

175 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

176 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

177 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

178 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

179 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

180 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

181 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

182 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

183 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

184 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

185 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

186 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

187 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

188 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

189 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

190 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

191 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

192 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

193 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

194 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

195 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

196 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

197 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

198 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

199 [redact] chronic photons E>250 keV Lognormal 0.000 3.000 0.000

200 [redact] chronic electrons E>15 keV Lognormal 0.097 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

33 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-3: IREP Input – Colon (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

201 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

202 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

203 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

204 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

205 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

206 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

207 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

208 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

209 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

210 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

211 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

212 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

213 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

214 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

215 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

216 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

217 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

218 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

219 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

220 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

221 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

222 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

223 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

224 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

225 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

226 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

227 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

228 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

229 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

230 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

231 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

232 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

233 [redact] chronic electrons E>15 keV Lognormal 0.099 3.000 0.000

234 [redact] chronic electrons E>15 keV Lognormal 0.002 3.000 0.000

235 [redact] chronic electrons E>15 keV Lognormal 0.001 3.000 0.000

236 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

237 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

238 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

239 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

240 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

241 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

242 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

243 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

244 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

245 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

246 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

247 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

248 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

249 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

250 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

251 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000
Effective Date:

February 27, 2015

Revision No.

0 (Draft)

Document No. 

SCA-TR-BDR2015-CN[Redact]

Page No.

34 of 34

NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution.

However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker 

Health for factual accuracy or applicability within the requirements of 42 CFR 82.

Appendix A-3: IREP Input – Colon (continued) 

Exp. # Exposure 

Year

Exposure 

Rate Radiation Type

Dose 

Distribution 

Type

Parameter 

1

Parameter 

2

Parameter 

3

252 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

253 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

254 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

255 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

256 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

257 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

258 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

259 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

260 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

261 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000

262 [redact] chronic electrons E>15 keV Lognormal 0.000 3.000 0.000